Fluid-feed side-inlet drill-bit.



PATENTED PEB. 26, 1907.

y J. H. WIEST. FLUID FEED SIDE INLET DRILL BIT.

APPLICATION FILED 00T. 5. 1906.

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JOHN HENRY WIEST, OF BOULDER, COLORADO, ASSIGN OR OF ONE-FOURTH TO CHARLES A. WOLOOTT AND ONE-FOURTH .TO T. S. WALTEMEYER,

-4 BOTH OF BOULDER, COLORADO.

Frommer-:En einsamer Deut-sar,

Specification of Letters Patent.

Application iilefl October 5, 1.906. Serial No. 337,614.

having side inlets; and it coznprehends gen.

erally a new and useful means for detachably connecting the fluid-conveying pipe to the side inlet of the drill-bit in such nia-nner that when water is used it cannot conve in contact with-any of the working parts of the machine and whereby the fluid-sup ly can be located at any place desired andfed to the drill under atmosphere or forced pressure.-

view of' the coupling with the fluid-feed pipe4 In its more speciiic nature' my invention embodies anim roved construction of coupling or holding evice tor removably coupling or holding the discharge end of the `fluid-pipe in tight connection withinthe side inlet of the drillcaf able of such adjustment whereby the fluit -pipe-'can 'be expeditiously and conveniently a pliedor removed and held to suit the desire positioning of the drive-bit;

and it also consists in further subordinate' Figure. 1 is a 1perspectiveview of aside-in-Y let drill-bit wit my improvements a plied. Fig. 2 isfa central transverse section tii Fig. 3 is a longitudinal section'taken on the line 3 3 on Fig.v 2. Fig. liis-a perspective attached, thecoupling beingr shown in its closed or coupled position. ig. 5is.a per'- spective view, the coupling-being in its' uncoupled position and the nozzle meinber-A omitted. Fig. 6 is a transverse SectiQmsimi-j' lar to Fig. 2, of a slightly-*modified for.4 n here-v inafter referred to. In carrying out my lnventionlsprovlde' a nozzle piece or member 1, l'adaptedto lbe quickly fitted within the side inletQO of the,

proved forirubut of that type having its cenner or striking end of the .bit and connected .with a side inlet 20, as-clearly shown in Fig.

the usual type, as shown.

In the adaptationl of my vinventiontof-side-i inlet drill-bits the side inlet need not 'be threaded and is preferably smooth to receive Patented Feb. se, 19o?.

and the rock-cutting end may also be ofl the tapered end 10 of the nozzle 1, which at the base of the taper 10 is externally threaded, as at 1l.,to adjustably receive the base or' main coupling n'enber 3, and the threaded endv of the nozzle is suitably shapedfto conveniently receive and hold the iexible hose or tubing 4, that leads to the'tank or other' point of supply which may be led to the drill .under natural or fluid pressure, as desired.

l The meznber hasa pendent apertured lug 30 at one end, and its opposite end is formed with a bifurcated extension in the terminate in a slightly concaved or de- `pressed edge portion33, the reason for which y will presently appear, and between the said ears 31 is fulcrunied the coupling-lever 5, pivotcd on the cross-pin 5() and having a concaved bearing 51 on its under edge adjacent thefulcrum and suitably-shaped handle eX- tension, as shown.

6 designates an Lui-shia ed coupling .memeV ber, one end of whic is bifurcated, the ears 61 being aperturcd and arranged todpivotally connect with the pendent 4lug 3() on pa rt'3,'while the other end is flattened to form an ear 62, which is also apertured to receive-a pivot-pin 7, that joins the apertured ends Sflof aloeking yoke or member S, Whose Icross-bai" 81 coperates with the curved Vedges 33 of the member 3 and the locking-lever.

From"the` foregoing, takenA in connection with the accompan fing drawings, the advan tages and the met od of operating my im- .,provement, it is believed, will be readily apparent:

' By reason of iitti'ng'the feed-'tube tothe ycoupling in the manner shown and described it will be apparent that when the coupling is operated, as shown in Fig. 2, to join my fluidfeed with the side inlet of the drillit is only 4necessary to slip 'the tapered nozzle into the side inlet of the-drill, a closc joint beinfr ef-4 fected by reason of the member 3 boing ieldv latwise against the inlet side of the drill, to which position the member 3 is locked by IOO simply swinging the yoke member 8 over the curved edges of the member .3 and then bringing down the lever 5, which tightly clamps the several parts about tliedrill-stock and causes the cross-bar to 'lirmly seat in the deoression 33, as best shown in Fig. 2.

iy reason of the manner iii which I am enabled to connect'the fluid or leed pipe tothe drilbstock the same can be almost instantly applied or disconnected, since no nuts, bolts, 'or unscrewing of the parts is necessary to adjust the same for the drill-stock.

In Fig. 6 have illustrated a nip le as provided with a rubber gasket 10, Wliich is detacliably fitted on the end and is adapted to be quickly re laced when it becomes worn or damaged. y providing the nipple with a rubber gasket, as shown, a twofold purpose is accomplished, since ithe saidgasket stops any leak that might be caused by the nipple becoming Worn, and, secondly, the said gasket acts as a spring and serves to take up the Wear and keeps the clamp tight at all times.

Having thus described my invention, what l claim, and desire to secure by Letters Patcent, is-

l. In combination with a rock-cutting drillbit, liavin a luid-passage extended into it from the drilling end and having a smooth Side inlet to said passage; of a fluid-feed member which includes a smooth` dischargenipple end, and clamping means mounted on the nipple end for engaging the drill-stock andcoupling said 'nipple iii the inlet as set forth., y

2. As an im rovenient in side-feed rockdrills, the com ination with a hollow drillbit having a side-feed inlet; ei a feed-'pi e having anozzle adapted to enter the bit sidefeed inlet, a member mounted on the nozzle adapted to clam against one side of the bit- 4stock and a yo eframe pivotally mounted on the said member, said yoke-frame including a locking portion adapted to interlock efe-5,355

with the member on the nozzle and a lever 3. The combination Withrthe drill-stoel;

lhaving a longitudinal iiidpassage that terminates in a lateral or sidefeed inlet; of aI flexible fluid-pipe, a metallic discharge-nip ple connected to the pipe, a clamp member adjustably mounted on the nipple whose upper end has a biiiurcated extension, whose outer edges curved, an L-sliaped clam pirrotally mounted on the lower 'end oi' the adjustable clamp member, a yoke pivotally connected to tlie outer end o the L-sliaped clamp, said yoke bein adapted to swing over and engage the curve( edge of the adjustable clamp members and a lever ulcrumed on the upper end of the clamp member for engaging the cross members oi' the yoke as set tortli.

4. As a new article, a clamp for the puipose described, comprising a main member, a nipple detachably and pivotally mounted thereon, said member having a biiurcated extension atthe upper end, and an apertured pendeiitear at the lever end, an L-sbaped clamp member hinged at one end .to the pend-- set forth.

JGHN HENRY WEST.

Witnesses:

F. S. HOWARD,

HELEN WIEsT. 

